*Note: This does not fit 325e models with the eta engine (except the 1987 “Super Eta”), or the 1992 E36 chassis 325i with the M50 (in 1992, the convertible used the E30 chassis, while coupes and sedans received the new E36 chassis). These used a different ECU design. Additionally, some European 325i models for the 1987 year used an ECU with a part number of 0 261 200 073 or 0 261 200 081; this ECU is not compatible with the stock wiring on these cars.

Also, this MSPNP may not work with automatic transmissions on the E34 or E32 chassis, which rely on the fuel consumption signal for the transmission computer. Automatic equipped E30s used a hydraulic transmission control that isn’t an issue.

Second Generation MSPNP; Easy to Use and Install!

MegaSquirtPNP Model #B8793 Features:

Fully Plug and Play Installation – No wiring required for basic functionality. Average install time is under 1 hour!

M20 base maps is pre-loaded to help your engine start on the first turn of the key (other model base maps included on USB stick)

Here is a partial list of DME (stock ECU) part numbers that this ECU can replace:

0 261 200 150

0 261 200 153

0 261 200 154

0 261 200 173

0 261 200 179

0 261 200 350

0 261 200 351

0 261 200 380

0 261 200 524

0 261 200 525

0 261 200 526

Note: Although there is a paid upgrade to TunerStudio, it is not needed to tune this ECU. The free version included on the USB Stick can access all the features and tables of the MegaSquirtPNP. The paid version of TunerStudio simply adds tuning and analysis software, such as VE Analyzer Live to tune the fuel tables based on wideband O2 feedback (requiring a wideband O2 sensor and controller, sold separately).